Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.
© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 04. Juni 2021)
1Petrelli, D. ; Lanfranchi, V. ; Ciravegna, F. ; Begdev, R. ; Chapman, S.: Highly focused document retrieval in aerospace engineering : user interaction design and evaluation.
In: Aslib proceedings. 63(2011) nos.2/3, S.148-167.
Abstract: Purpose - This paper seeks to describe the preliminary studies (on both users and data), the design and evaluation of the K-Search system for searching legacy documents in aerospace engineering. Real-world reports of jet engine maintenance challenge the current indexing practice, while real users' tasks require retrieving the information in the proper context. K-Search is currently in use in Rolls-Royce plc and has evolved to include other tools for knowledge capture and management. Design/methodology/approach - Semantic Web techniques have been used to automatically extract information from the reports while maintaining the original context, allowing a more focused retrieval than with more traditional techniques. The paper combines semantic search with classical information retrieval to increase search effectiveness. An innovative user interface has been designed to take advantage of this hybrid search technique. The interface is designed to allow a flexible and personal approach to searching legacy data. Findings - The user evaluation showed that the system is effective and well received by users. It also shows that different people look at the same data in different ways and make different use of the same system depending on their individual needs, influenced by their job profile and personal attitude. Research limitations/implications - This study focuses on a specific case of an enterprise working in aerospace engineering. Although the findings are likely to be shared with other engineering domains (e.g. mechanical, electronic), the study does not expand the evaluation to different settings. Originality/value - The study shows how real context of use can provide new and unexpected challenges to researchers and how effective solutions can then be adopted and used in organizations.
2Jagtap, S. ; Johnson, A.: Requirements and use of in-service information in an engineering redesign task : case studies from the aerospace industry.
In: Journal of the American Society for Information Science and Technology. 61(2010) no.12, S.2442-2460.
Abstract: This article describes the research stimulated by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defense purposes, away from the selling of products to the provision of services. This research was undertaken in an aerospace company, which designs and manufactures aero engines and also offers contracts, under which it remains responsible for the maintenance of engines. These contracts allow the company to collect far more data about the in-service performance of their engines than was previously available. This article aims at identifying what parts of this in-service information are required when components or systems of existing engines need to be redesigned because they have not performed as expected in service. In addition, this article aims at understanding how designers use this in-service information in a redesign task. In an attempt to address these aims, we analyzed five case studies involving redesign of components or systems of an existing engine. The findings show that the in-service information accessed by the designers mainly contains the undesired physical actions (e.g., deterioration mechanisms, deterioration effects, etc.) and the causal chains of these undesired physical actions. We identified a pattern in the designers' actions regarding the use of these causal chains. The designers have generated several solutions that utilize these causal chains seen in the in-service information. The findings provide a sound basis for developing tools and methods to support designers in effectively satisfying their in-service information requirements in a redesign task.
3NASA (Hrsg.): NASA thesaurus.3 vols.
Linthicum Heights, MD : NASA Administration, 1994. 908+408+162 S.
Abstract: Vol.1: Hierarchical listing, contains the introduction and the alphabetical listing of descriptors together with their concept field. The 1994 ed. includes over 17.500 terms and over 4.000 USE references. Altogether there are 167.000 BT,NT and RT entries. Vol.2, the access vocabulary contains 42.000 eintries of postable and non-postable terms, embedded terms and other entry terms. Vol.3 gives definitions, added to the NASA thesaurus since 1976. Over 3.500 definitions are complemented by some 1.000 USE references
Anmerkung: Rez. in: Information processing and management 32(1996) no.1, S.117-118 (P.A. Mosely)
Objekt: NASA Thesaurus